1
a
: of or relating to milk
b
: obtained from sour milk or whey
2
: involving the production of lactic acid
Examples of lactic in a Sentence
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These include salicylic acid, glycolic acid, phytic acid, and lactic acid.6
In some research, salicylic acid peels lightened dark spots by about 32%.6 Glycolic acid peels reduced dark spots by about 50% after about five months.
—
Susan Bard, Health, 3 May 2025
Esters, organic compounds formed when acids, typically lactic or acetic, react with alcohol, contribute to floral, fruity, and tropical aromas, especially banana, pineapple, and pear.
—Joseph V Micallef, Forbes.com, 26 Apr. 2025
Comparing sauerkraut with cabbage, the study authors showed that sauerkraut has more metabolites — the products produced during metabolic processes like digestion, including those that are linked to a healthy gut, like lactic and amino acids — than cabbage.
—Sam Walters, Discover Magazine, 15 Apr. 2025
The formula pairs 15% pure vitamin C with 10% hydroxy acids (specifically, glycolic and lactic) to gently exfoliate—making way for clearer, smoother skin sans blemishes, enlarged pores, and fine lines.
—Kiana Murden, Vogue, 4 Mar. 2025
See All Example Sentences for lactic
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Susan Bard, Health, 3 May 2025
Esters, organic compounds formed when acids, typically lactic or acetic, react with alcohol, contribute to floral, fruity, and tropical aromas, especially banana, pineapple, and pear.
—Joseph V Micallef, Forbes.com, 26 Apr. 2025
Comparing sauerkraut with cabbage, the study authors showed that sauerkraut has more metabolites — the products produced during metabolic processes like digestion, including those that are linked to a healthy gut, like lactic and amino acids — than cabbage.
—Sam Walters, Discover Magazine, 15 Apr. 2025
The formula pairs 15% pure vitamin C with 10% hydroxy acids (specifically, glycolic and lactic) to gently exfoliate—making way for clearer, smoother skin sans blemishes, enlarged pores, and fine lines.
—Kiana Murden, Vogue, 4 Mar. 2025
See All Example Sentences for lactic
Cite this Entry
“Lactic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lactic. Accessed 25 May. 2025.
Copy CitationMedical Definition
lactic
adjective
lac·tic
ˈlak-tik 
1
a
: of or relating to milk
b
: obtained from sour milk or whey
2
: involving the production of lactic acid
lactic fermentation
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